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Either a hills or a mature (well eroded, old) mountain range.
Hi
Some of the characteristics of fault-block mountains would be sharp, and jagged peaks.
Just shove a piece of paper from the opposite sides to the middle and you will see this for yourself. The displaced material has nowhere to go but up.
Cirques
erosion by water
Jagged mountains peaks become more rounded by the process of weathering. This occurs as wind and rain slowly eat away at the mountain, removing tiny bits of the rocks at a time until the mountains look more rounded than jagged.
through erosion
sierra
A young mountain has steep sides. It also has sharp jagged peaks and narrow valleys. Older mountains are more rounded.
because older mountains are more exposed to the elements such as rain and storms which wear down the jagged points. Actually, the sharpness or bluntness of the peaks of a mountain indicates the strength of the rock from which they are formed, and says nothing about their age.
young
Through harsh winds constantly battering the mountain tops possibly earthquakes which could end up grinding two mountains together,the friction of which could cause the peaks to round off.
Tall, rocky, jagged peaks are young: Himalayas Low, tree covered, rounded, hill-like features are old: Appalachians
Weathering rounded the mountains by breaking down jagged peaks.
Sierra means "mountain range" in Spanish, referring specifically to a mountain range with jagged peaks.
The name Sierra means 'mountain range' in Spanish. It specifically means a mountain range with jagged peaks.